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(A) Stanley Miller conducted a famous experiment in $1953$ to test the Oparin-Haldane hypothesis regarding the origin of life.He created a closed syst

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Steam,$CH_4, H_2$ and $NH_3$

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(A) Stanley Miller conducted a famous experiment in $1953$ to test the Oparin-Haldane hypothesis regarding the origin of life.He created a closed system containing a mixture of gases including methane $(CH_4)$,ammonia $(NH_3)$,hydrogen $(H_2)$,and water vapor (steam) in a ratio of $2:2:1$.He subjected this mixture to electric discharges using electrodes to simulate lightning in the primitive atmosphere.After a week,he observed the formation of simple amino acids like glycine,alanine,and aspartic acid,providing experimental evidence for chemical evolution.

In his classic experiment on the formation of amino acids,Stanley Miller passed an electric discharge in a mixture of

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